Answer:
9
Step-by-step explanation:
x=2 so...
2*2+5=9
Answer:
13 seconds.
Step-by-step explanation:
Given

Required
Determine a reasonable solution for t
To do this, we equate h to 0.
becomes

Divide through by -4.9

Reorder the expression

Split
or 
This gives:
or 
But time can't be negative, So:

100/6 + w would be correct answer I think.
The answer is 7.7 that is the answer
Y = -3x + 13
Steps and the graph are on paper